ICP-AES法测定炼钢孕育剂中的钡

Determination of barium in steel-making inoculant by plasma atomic emission spectrometry

用电感耦合等离子体光谱法测定炼钢孕育剂中的钡,先将样品中的钡转化成BaCO3沉淀,再转化成Ba2+,并选择合适的谱线及仪器参数.该法操作简便、分析快速,相对标准偏差小于1%(n=6),加料回收率96.1%～99.1%.

During determination of barium in inoculant by plasma spectrometry, barium in the sample is firstly converted to BaCO3 deposit and then to Ba2+ , and suitable spectrum lines and instrumental parameters are selected. This method is simple in operation and rapid in determination. The relative standard deviation is less than 1.0% (n=6) and the standard addition recovery is 96.1%-99.1%.